.header_nav{
  height:0.88rem;
  line-height:0.88rem;
  background-color:#fff;
  padding:0 0.4rem 0 0.3rem;
  width:100%;
  border-bottom:0.02rem solid #c8c8c8;
  a{
    display:block;
  }
  .return_prev{
    color:#646464;
  }
  .title{
    font-size:0.28rem;
    color:#666;
    height:0.4rem;
    line-height:0.4rem;
    border-left:0.02rem solid #c8c8c8;
    margin-top:0.22rem;
    margin-left:0.3rem;
    padding-left:0.3rem;
  }
  .return_home{
    color:#f10180;
  }
}